Experimental study on a behavior of restrainer plates of bridge girders during earthquake

The tie-plate type of bridge restrainer is one of the simple structures that connect the adjacent girders. Many bridge restrainers were damaged by the Hyogo-ken Nanbu Earthquake. The typical damage was categorized into three failure patterns: breakage of pins, connecting plates, and web plates. Bridge restrainers are installed to prevent the unseating of super-structures, even if there is not considerable ground motion in seismic design, or unpredictable collapse of the structure would occur. In other words, the restrainer must be not easily broken by the seismic load, and absorb the effect of any shock-like force by its plastic deformation. The tie-plate type of bridge restrainer consists of tie-plates, pin, and web plates. In order to have such functions, it is required that tie-plates, pin, and web plate are designed to take into account the ultimate strength and the deformation performance for each member, not using the elastic design method. The tie-plate type of bridge restrainer consists of three members connecting plate, pin, and stiffened web plates. This paper presents an outline of static and impact tests using prototype models to evaluate the characteristics of the tie-plate and to estimate the ultimate strength of it.

• Authors:
  • Imamura, K
  • Funamoto, K
• Conference:
  • Road Engineering Association of Asia and Australasia (REAAA) Conference, 10th, 2000, Tokyo, Japan
• Publication Date: 2000

Language

• English

Media Info

• Pagination: 12p

Subject/Index Terms

• TRT Terms: Anchorages; Beams; Bridge superstructures; Condition surveys; Dynamic loads; Seismicity; Structural tests
• ATRI Terms: Anchorage; Beam; Bridge inspection; Bridge superstructure; Damage; Dynamic loading; Seismic disturbance; Structural testing
• Subject Areas: Bridges and other structures;

Filing Info

• Accession Number: 01393837
• Record Type: Publication
• Source Agency: ARRB
• Files: ATRI
• Created Date: Aug 23 2012 9:49AM